M. Goswami, Rakesh Kumar, A. Patil, A. K. Sahu, G. Kothiyal
{"title":"Cr2O3对BaO-CaO-Al2O3-B2O3-SiO2溶解度及热物性的影响","authors":"M. Goswami, Rakesh Kumar, A. Patil, A. K. Sahu, G. Kothiyal","doi":"10.1063/1.4710151","DOIUrl":null,"url":null,"abstract":"BaO-CaO-Al2O3-(10-x)B2O3-xCr2O3 SiO2 (BCABS), where 1.0 ≤x ≤ 3.5, (mol%) glasses were prepared by melt-quench technique. Glass samples were characterized for density, microhardness, thermal expansion coefficient and glass transition temperature. Scanning electron microscopy was used to see the homogeneity/solubility of Cr2O3 in this glass system. UV-VIS absorption measurements were carried out to see the Cr speciation in the glass samples. Density values were found to vary from 3.97 to 3.92 g/cc and microhardness values varied from 283 to 503 kg/mm2. Glass transition temperature increased from 635 to 671°C while TEC value found to varies from 8.3 to 11.1×10−6/°C(30-300) with Cr2O3 content. SEM study revealed phase separation in these glasses. From absorption studies we infer the presence of small amount of Cr (VI) along with Cr(III) oxidation state.","PeriodicalId":16850,"journal":{"name":"Journal of Physics C: Solid State Physics","volume":"11 1","pages":"609-610"},"PeriodicalIF":0.0000,"publicationDate":"2012-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Effect of Cr2O3 on solubility and thermo-physical properties of BaO-CaO-Al2O3-B2O3-SiO2 g\",\"authors\":\"M. Goswami, Rakesh Kumar, A. Patil, A. K. Sahu, G. Kothiyal\",\"doi\":\"10.1063/1.4710151\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"BaO-CaO-Al2O3-(10-x)B2O3-xCr2O3 SiO2 (BCABS), where 1.0 ≤x ≤ 3.5, (mol%) glasses were prepared by melt-quench technique. Glass samples were characterized for density, microhardness, thermal expansion coefficient and glass transition temperature. Scanning electron microscopy was used to see the homogeneity/solubility of Cr2O3 in this glass system. UV-VIS absorption measurements were carried out to see the Cr speciation in the glass samples. Density values were found to vary from 3.97 to 3.92 g/cc and microhardness values varied from 283 to 503 kg/mm2. Glass transition temperature increased from 635 to 671°C while TEC value found to varies from 8.3 to 11.1×10−6/°C(30-300) with Cr2O3 content. SEM study revealed phase separation in these glasses. From absorption studies we infer the presence of small amount of Cr (VI) along with Cr(III) oxidation state.\",\"PeriodicalId\":16850,\"journal\":{\"name\":\"Journal of Physics C: Solid State Physics\",\"volume\":\"11 1\",\"pages\":\"609-610\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-06-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Physics C: Solid State Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1063/1.4710151\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics C: Solid State Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.4710151","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of Cr2O3 on solubility and thermo-physical properties of BaO-CaO-Al2O3-B2O3-SiO2 g
BaO-CaO-Al2O3-(10-x)B2O3-xCr2O3 SiO2 (BCABS), where 1.0 ≤x ≤ 3.5, (mol%) glasses were prepared by melt-quench technique. Glass samples were characterized for density, microhardness, thermal expansion coefficient and glass transition temperature. Scanning electron microscopy was used to see the homogeneity/solubility of Cr2O3 in this glass system. UV-VIS absorption measurements were carried out to see the Cr speciation in the glass samples. Density values were found to vary from 3.97 to 3.92 g/cc and microhardness values varied from 283 to 503 kg/mm2. Glass transition temperature increased from 635 to 671°C while TEC value found to varies from 8.3 to 11.1×10−6/°C(30-300) with Cr2O3 content. SEM study revealed phase separation in these glasses. From absorption studies we infer the presence of small amount of Cr (VI) along with Cr(III) oxidation state.
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